Caustics due to a negative refractive index in circular graphene p-n junctions

被引：103
|
作者：
Cserti, Jozsef [1 ]
Palyi, Andras [1 ]
Peterfalvi, Csaba [1 ]
机构：
[1] Eotvos Lorand Univ, Dept Phys Complex Syst, H-1117 Budapest, Hungary
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 24期
关键词：
D O I：
10.1103/PhysRevLett.99.246801
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We show that the wave functions form caustics in circular graphene p-n junctions which in the framework of geometrical optics can be interpreted with a negative refractive index.
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收藏
页数：4
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